Valve's seminal PC First Person Shooter series that is forever awaiting a third entry. Gearbox's contribution to the series was the creation of two expansions for the first Half-Life called Opposing Forces and Blue Shift.
Black Mesa is a fan-made mod gone commercial that beautifully recreated the entirety of the original Half-Life in the Source engine.
Never thought we'd see the day... After thirteen years, a new Half-Life game is finally coming, and this time it features Alyx Vance as the main character!
Released in 2004, Half-Life 2 is considered a classic of the genre and it's importance in PC gaming, in particular, is hard to overstate with its emphasis on the gravity gun, and requiring